Home / 5,905.74-8,149.75-3,216.90

Finding the Fourth Proportional to 5,905.74, 8,149.75 and 3,216.90

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Solution

The fourth proportional to 5,905.74, 8,149.75 and 3,216.90 is: 4,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.74 : 8,149.75 = 3,216.90 : x
  2. Step 2: Convert to fraction form
    5,905.74/8,149.75 = 3,216.90/x
  3. Step 3: Cross multiply
    5,905.74x = 8,149.75 × 3,216.90
  4. Step 4: Simplify right side
    5,905.74x = 26,216,930.78
  5. Step 5: Solve for x
    x = 26,216,930.78/5,905.74
  6. Step 6: Final answer
    x = 4,439.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.